Reactions of Fe+ and FeO+ with C2H2, C2H4, and C2H6: Temperature-Dependent Kinetics

Abstract

We present the first temperature-dependent rate constants and branching ratios for the reactions of Fe+ and FeO+ with C2H2, C2H4, and C2H6 from 170 to 700 K. Fe+ is observed to react only by association with the three hydrocarbons, with temperature dependencies of T(expn -2) to T(expn -3). FeO+ reacts with C2H2 and C2H4 at the collision rate over the temperature range, and their respective product branchings show similar temperature dependences. In contrast, the reaction with ethane is collisional at 170 K but varies as T(expn -0.5), while the product branching remains essentially flat with temperature. These variations in reactivity are discussed in terms of the published reactive potential surfaces. The effectiveness of Fe+ as an oxygen-transfer catalyst toward the three hydrocarbons is also discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 12, 2013
Accession Number
ADA616261

Entities

People

  • Albert A Viggiano
  • Joseph A. Fournier
  • Joshua J Melko
  • Nicholas S Shuman
  • Shaun G Ard

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Alcohols
  • Alkenes
  • Alkynes
  • Catalysts
  • Chemical Compounds
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Collisions
  • Density Functional Theory
  • Ground State
  • Hydrocarbons
  • Organic Chemistry
  • Phase Studies
  • Physical Chemistry

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics
  • Theoretical Analysis.